330d breather diameter?

Dan-danGT · 12-28-2014, 10:26 AM

Evening all I'm considering changing my breather for an external catch can. I Have already changed the bmw breather but would like some extra protection as such! The only pipe I am able to use is just under the MAF sensor. Does anyone know the diameter of the pipe?

I think it's different on both ends, I will be taking it off tomorrow to measure anyway. Does anyone have any advice on breather tank?

elbutio · 12-28-2014, 02:09 PM

Is your car the LCI (post 58 plate) 330d??

Dan-danGT · 12-28-2014, 04:33 PM

Pre lci 08 plate

Dan-danGT · 01-02-2015, 01:36 AM

I have a question relating to 330d engine. I would like to improve the breather system, now looking at the breather pipe before the turbo I dont have alot of room to put two breather pipes to a catch can.

My question is can I buy a 335d breather which I believe vents at the top of the engine into a pipe? then fit that and run a pipe from the breather to a catch can then to the intake pipe like normal? I know many might have the 335d so this might be a little difficult but hopefully someone might be able to help me.

ade146 · 01-06-2015, 01:15 PM

I looked at doing something similar but as you have noticed you would probably have to buy two commercially made 90deg bends.

You could try putting a vortex into your empty breather box. It helps, or if you dont mind changing the filters put a filter cartridge in there.

mayhs · 07-01-2015, 12:44 PM

Quote:

Originally Posted by ade146

I looked at doing something similar but as you have noticed you would probably have to buy two commercially made 90deg bends.

You could try putting a vortex into your empty breather box. It helps, or if you dont mind changing the filters put a filter cartridge in there.

Sorry to hijack the thread, but just wanted to get a bit of clarification on the empty breather box. I seem to be getting moderate oil consumption but just wondering if its worth putting a vortex breather into the box.

Its quite a bit of work to get to the breather if I remember correctly so just wondering if that would help reduce my oil consumption and if so, howcome BMW didn't put either a filter or vortex in the original design?

ade146 · 07-01-2015, 02:47 PM

They have had several iterations of this breather. On the E46 they had the same box with a loo roll filter. They didnt have them on the service interval and some blocked causing excess pressure.

On the E90 they didnt put anything in the box.

On the 5 series they put a vortex thingy in there.

So BMW have never been able to make up their minds on this.

They issued a PUMA for customers with high oil consumption to fit a loo roll filter in the empty box but only on complaint. The diaphragm and spring do not operate in any of the above as far as I know. BMW probably stole the part from a heinkel or something and thats why they have the vac nipple which isnt used.

12-28-2014, 10:26 AM	#1
Dan-danGT Captain 33 Rep 650 Posts Drives: E90 330d M-Sport Join Date: Dec 2012 Location: Nottinghamshire iTrader: (0)	330d breather diameter? Evening all I'm considering changing my breather for an external catch can. I Have already changed the bmw breather but would like some extra protection as such! The only pipe I am able to use is just under the MAF sensor. Does anyone know the diameter of the pipe? I think it's different on both ends, I will be taking it off tomorrow to measure anyway. Does anyone have any advice on breather tank? __________________
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12-28-2014, 02:09 PM	#2
elbutio Private 7 Rep 91 Posts Drives: 335d F31 & 330d E91 Join Date: Mar 2011 Location: UK iTrader: (0)	Is your car the LCI (post 58 plate) 330d??
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12-28-2014, 04:33 PM	#3
Dan-danGT Captain 33 Rep 650 Posts Drives: E90 330d M-Sport Join Date: Dec 2012 Location: Nottinghamshire iTrader: (0)	Pre lci 08 plate
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01-02-2015, 01:36 AM	#4
Dan-danGT Captain 33 Rep 650 Posts Drives: E90 330d M-Sport Join Date: Dec 2012 Location: Nottinghamshire iTrader: (0)	I have a question relating to 330d engine. I would like to improve the breather system, now looking at the breather pipe before the turbo I dont have alot of room to put two breather pipes to a catch can. My question is can I buy a 335d breather which I believe vents at the top of the engine into a pipe? then fit that and run a pipe from the breather to a catch can then to the intake pipe like normal? I know many might have the 335d so this might be a little difficult but hopefully someone might be able to help me.
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01-06-2015, 01:15 PM	#5
ade146 Second Lieutenant 8 Rep 242 Posts Drives: E90 330d sport auto Join Date: Sep 2012 Location: S.Wales or Cheshire iTrader: (0)	I looked at doing something similar but as you have noticed you would probably have to buy two commercially made 90deg bends. You could try putting a vortex into your empty breather box. It helps, or if you dont mind changing the filters put a filter cartridge in there.
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07-01-2015, 02:47 PM	#7
ade146 Second Lieutenant 8 Rep 242 Posts Drives: E90 330d sport auto Join Date: Sep 2012 Location: S.Wales or Cheshire iTrader: (0)	They have had several iterations of this breather. On the E46 they had the same box with a loo roll filter. They didnt have them on the service interval and some blocked causing excess pressure. On the E90 they didnt put anything in the box. On the 5 series they put a vortex thingy in there. So BMW have never been able to make up their minds on this. They issued a PUMA for customers with high oil consumption to fit a loo roll filter in the empty box but only on complaint. The diaphragm and spring do not operate in any of the above as far as I know. BMW probably stole the part from a heinkel or something and thats why they have the vac nipple which isnt used.
	Appreciate 0 Quote